#! /bin/bash -e

#####################################################################
#                                                                   #
#               A minimal faust2minimal  template                   #
#               (c) Grame, 2021                                     #
#                                                                   #
#####################################################################

# Define some common paths
. faustpath

# Define compilation flags
. faustoptflags

# Helper file to build the 'help' option
. usage.sh

CXXFLAGS+=" $MYGCCFLAGS"  # So that additional CXXFLAGS can be used
LIBADD+=" -pthread"

# The architecture file name
ARCHFILE=$FAUSTARCH/minimal.cpp

# Global variables
OPTIONS=""
FILES=""
UI=""

echoHelp()
{
    usage faust2minimal "[options] [Faust options] <file.dsp>"
    echo "Compiles Faust programs to a minimal executable"
    option "-clone" "Use architecture/minimal-clone.cpp (state-transfer demo: clone/copy ctor/assignment)"
    option "Faust options"
    exit
}

if [ "$#" -eq 0 ]; then
    echo 'Please, provide a Faust file to process !'
    echo ''
    echoHelp
fi

#-------------------------------------------------------------------
# dispatch command arguments
#-------------------------------------------------------------------

while [ $1 ]
do
    p=$1

    if [ $p = "-help" ] || [ $p = "-h" ]; then
        echoHelp
    fi

    if [ $p = "-fx" ]; then
        OPTIONS="$OPTIONS $p"
        CXXFLAGS="$CXXFLAGS -I /usr/local/include/ap_fixed -DFIXED_POINT"
    elif [ $p = "-clone" ]; then
        ARCHFILE=$FAUSTARCH/minimal-clone.cpp
    elif [ $p = "-layout" ]; then
        UI="-DLAYOUT_UI"
    elif [ ${p:0:1} = "-" ]; then
        OPTIONS="$OPTIONS $p"
    elif [[ -f "$p" ]] && [ ${p: -4} == ".dsp" ]; then
        FILES="$FILES $p"
    else
        OPTIONS="$OPTIONS $p"
    fi

shift

done

#-------------------------------------------------------------------
# compile the *.dsp files
#-------------------------------------------------------------------

for f in $FILES; do

    # compile the DSP to c++ using the architecture file
    echo "compile the DSP to c++ using the architecture file"
    faust -i -a $ARCHFILE $OPTIONS "$f" -o "${f%.dsp}.cpp"|| exit

    # compile c++ to binary
    echo "compile c++ to binary"
    (
        $CXX $CXXFLAGS "${f%.dsp}.cpp" $UI -o "${f%.dsp}" ${LIBADD}
    ) > /dev/null || exit

    # remove temporary files
    rm -f "${f%.dsp}.cpp"

    # collect binary file name for FaustWorks
    BINARIES="$BINARIES${f%.dsp};"
done

echo $BINARIES

